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Error Identifier: staticProperty.internalEnum

← Back to staticProperty.*

Every error reported by PHPStan has an error identifier. Here’s a list of all error identifiers. In PHPStan Pro you can see the error identifier next to each error and filter errors by their identifiers.

Code example #

<?php declare(strict_types = 1);

namespace Vendor {
	/** @internal */
	enum InternalStatus {
		case Active;

		public static string $label = 'Status';
	}
}

namespace App {
	function test(): string {
		return \Vendor\InternalStatus::$label; // error: Access to static property $label of internal enum Vendor\InternalStatus from outside its root namespace Vendor.
	}
}

Why is it reported? #

A static property is being accessed on an enum that is marked as @internal. Internal enums are not part of the public API of the package that defines them and may change or be removed without notice. Accessing static properties on internal enums creates a fragile dependency on implementation details.

How to fix it #

Use the public API of the package instead of accessing static properties on internal enums:

 namespace App {
 	function test(): string {
-		return \Vendor\InternalStatus::$label;
+		return \Vendor\PublicStatus::$label;
 	}
 }

If the enum is internal to your own project and the usage is within the same root namespace, the error will not be reported.

How to ignore this error #

You can use the identifier staticProperty.internalEnum to ignore this error using a comment:

// @phpstan-ignore staticProperty.internalEnum
codeThatProducesTheError();

You can also use only the identifier key to ignore all errors of the same type in your configuration file in the ignoreErrors parameter:

parameters:
	ignoreErrors:
		-
			identifier: staticProperty.internalEnum

Rules that report this error #

  • PHPStan\Rules\InternalTag\RestrictedInternalClassNameUsageExtension [1]
  • PHPStan\Rules\InternalTag\RestrictedInternalPropertyUsageExtension [1] [2]
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